Pick up the correct statement from the following :
Options
A. it is difficult to eliminate an error completely at first trial
B. instability of the instrument makes it almost impossible to adjust it satisfactorily
C. adjustment screws must be left bearing firmly but should never be forced
D. all the above.
Correct Answer
all the above.
More questions
1. A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is
2. A cantilever carrying a uniformly distributed load W over its full length is propped at its free end such that it is at the level of the fixed end. The bending moment will be zero at its free end also at